Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level
文献类型：期刊论文
| 作者 | Liu, Ke1,2; Wang, Xianhong1; Wang, Fosong1 |
| 刊名 | ACS NANO
 |
| 出版日期 | 2008-11-01 |
| 卷号 | 2期号:11页码:2315-2323 |
| 关键词 | Ruthenium-complex-enhanced Charge Transport Scanning Tunneling Microscopy Conductive Probe-atomic Force Microscopy Technique-combination Method Electronic Decay Constant Single Molecular Conductance Barrier Height |
| ISSN号 | 1936-0851 |
| DOI | 10.1021/nn800475a |
| 英文摘要 | A ruthenium(II) bis(sigma-arylacetylide)-complex-based molecular wire functionalized with thiolacetyl alligator clips at both ends (OPERu) was used to fabricate gold substrate-molecular wire-conductive tip junctions. To elucidate the ruthenium-complex-enhanced charge transport, we conducted a single-molecule level investigation using the technique-combination method, where electronic delay constant, single-molecular conductance, and barrier height were obtained by scanning tunneling microscopy (STM) apparent height measurements, STM break junction measurements, and conductive probe-atomic force microscopy (CP-AFM) measurements, respectively. A quantitative comparison of OPERu with the well-studied pi-conjugated molecular wire oligo(1,4-phenylene ethynylene) (OPE) indicated that the lower electronic decay constant as well as the higher conductance of OPERu resulted from its lower band gap between the highest occupied molecular orbital (HOMO) and the gold Fermi level. The small offset of 0.25 eV was expected to be beneficial for the long-range charge transport of molecular wires. Moreover, the observed cross-platform agreement proved that this technique-combination method could serve as a benchmark for the detailed description of charge transport through molecular wires. |
| 语种 | 英语 |
| WOS记录号 | WOS:000261199400018 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64319]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Xianhong |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Ke,Wang, Xianhong,Wang, Fosong. Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level[J]. ACS NANO,2008,2(11):2315-2323. |
| APA | Liu, Ke,Wang, Xianhong,&Wang, Fosong.(2008).Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level.ACS NANO,2(11),2315-2323. |
| MLA | Liu, Ke,et al."Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level".ACS NANO 2.11(2008):2315-2323. |
入库方式： OAI收割
来源：化学研究所
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